- A. Momentum
- B. Mass
- C. Energy
- D. None of these
Chemical Engineering Thermodynamics (MCQs)
-
1st law of thermodynamics is nothing but the law of conservation of
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Specific/molar Gibbs free energy for a pure substance does not change during
- A. Sublimation
- B. Vaporisation
- C. Melting
- D. Either A, B or C
-
In a turbine, the fluid expands almost
- A. Isothermally
- B. Isobarically
- C. Adiabatically
- D. None of these
-
If two gases have same reduced temperature and reduced pressure, then they will have the same
- A. Volume
- B. Mass
- C. Critical temperature
- D. None of these
-
__________ does not change during phase transformation processes like sublimation, melting & vaporisation.
- A. Entropy
- B. Gibbs free energy
- C. Internal energy
- D. All of the above
-
In case of the decomposition of hydroiodic acid (2HI ⇋ H₂ + I₂), addition of H₂ (at equilibrium condition) will
- A. Increase the partial pressure of I₂
- B. Decrease the partial pressure of HI
- C. Diminish the degree of dissociation of HI
- D. None of these
-
For an isothermal process, the internal energy of a gas
- A. Increases
- B. Decreases
- C. Remains unchanged
- D. Data insufficient, can’t be predicted
-
For an ideal gas, the activity co-efficient is
- A. Directly proportional to pressure
- B. Inversely proportional to pressure
- C. Unity at all pressures
- D. None of these
-
In case of an __________ process, the temperature of the system increases.
- A. Isothermal compression
- B. Isothermal expansion
- C. Adiabatic expansion
- D. Adiabatic compression
-
Standard temperature and pressure (S.T.P.) is
- A. 0°C and 750 mm Hg
- B. 15°C and 750 mm Hg
- C. 0°C and 1 kgf/cm²
- D. 15°C and 1 kgf/cm²